In the past, I was able to help some Europeans convert RF devices from 310MHz to 433.92MHz so they could buy cheaper US devices and modify them for European use. I was also able to convert the European temperature monitor/thermostat to use here. In these cases, all that was needed was to replace the RF transmitter module.
That's not likely to work here as, IIRC, both X10 and WiFi frequencies are different for Europe.
There are more and more companies introducing comprehensive systems (Harmony just did so.) that work with a multitude of vendors. The one vendor missing from all is X10.
I'm a quadriplegic (classified by the VA as catastrophically disabled) and am more and more finding the need to move beyond X10 to something more integrated and reliable. I am leaning towards Belkin's WeMo as I've extensive experience with their WiFi gear and figure they will get things right, eventually. And, there are no range issues with any of my multiple WiFi devices.
The holdup is both expense (WeMo devices are rather costly) and the lack of remote control (beyond phones/tablets). I now have an X10 RF remote (or more) in each room and can control all of my X10 devices (much more limited these days) with them. I also have a minitimer that turns my lights on in the morning and evening. I sure do not want or need both X10 remotes and WiFi-capable tablets in multiple locations.
Unless the
new X10 gets their heads out of their *sses and addresses the need to integrate with newer WiFi based systems, methinks they won't last long. Selling replacement modules to the oldtimers here won't cut it long range.